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About usAn industrial and trade fire company integrating the development, production, sales, and service of fire accessories.
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09
2026
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01
The "All-Round Warrior" in Fire Protection: A Hardcore Popular Science of Water/Foam Dual-Purpose Fire Monitor
The core value of the water/foam dual-purpose fire monitor lies in "solving multi-scenario problems with one system"—it not only makes up for the shortcoming that a single water monitor is ineffective for liquid fires but also solves the problem that a single foam monitor has low efficiency for solid fires. Furthermore, through designs such as remote control and coordinated operations, it improves the fire extinguishing safety and efficiency in high-risk scenarios. From petrochemical parks to ocean-going ships, from domestic projects to the "Belt and Road" export projects, this "all-round warrior" is guarding the lives and property safety of more people with technological innovation.
Amid the raging fires in petrochemical parks and the leakage emergencies on offshore oil tankers, there is always an equipment that can strike precisely—it can not only spray high-pressure water columns to quickly cool down and control fires but also release foam blankets to suffocate open flames. This is the "all-rounder" in the field of fire protection—the Water/foam Dual-purpose Fire Monitor. Today, we will deeply disassemble this hardcore equipment to see how it becomes a safety patron saint in high-risk scenarios with its advantage of "one equipment, two uses".
I. First, Understand the Core: Why Can It Extinguish Fires in Both "Water and Foam Modes"?
The core advantage of the water/foam dual-purpose fire monitor lies in realizing the rapid switching of two fire-extinguishing media with one system. The key to its working principle is the dual-circuit design of "precise proportioning + flexible switching", which mainly consists of three core modules:
Power and Conveying Module: It includes fire pump sets, pipelines, and valve systems, responsible for providing stable pressure for fire extinguishing—water supply pressure directly determines the range, and high-end models can achieve 16bar high-pressure output with a range exceeding 150 meters. The pipelines are made of corrosion-resistant materials, and two conveying channels for water and foam concentrate are reserved at the same time. Millisecond-level switching is realized through solenoid valves to avoid residual media interfering with the fire-extinguishing effect.
Foam Proportioning Module: This is the key part distinguishing it from ordinary water monitors, including a foam concentrate tank and a proportioning mixing device. During fire extinguishing, the proportioning mixing device will automatically mix foam concentrate with water at a fixed ratio (usually 3%-6%), and then spray through the monitor nozzle to form a foam blanket—the surfactant in the foam can reduce the surface tension of water, allowing the foam to firmly cover the fuel surface and isolate oxygen to achieve suffocation fire extinguishing.
Control and Spraying Module: The monitor head adopts a rotatable design, which can rotate 360° horizontally and pitch ±90° vertically. It supports manual or remote electric control, adapting to unmanned operations in high-risk scenarios. The monitor head is also equipped with a multi-functional nozzle, which can switch between direct current and spray jet modes: the direct current mode has a long range, suitable for long-distance fire control; the spray mode has a large coverage area, suitable for rapid cooling or forming a protective water curtain.
Core Logic: Water extinguishes fires by "cooling down" (lowering the temperature of combustibles below the ignition point), while foam extinguishes fires by "suffocation and isolation" (blocking the contact between fuel and oxygen). The two modes complement each other and can deal with more complex fire situations.
II. Hardcore Advantages: Why Is It Indispensable in High-Risk Scenarios?
Compared with a single water monitor or foam monitor, the advantages of the dual-purpose fire monitor are particularly prominent in actual combat, which is why it has become a "standard configuration" in scenarios such as petrochemicals and terminals:
Wide Scene Adaptability: It can use clean water to put out solid fires (Class A fires) such as wood and cloth, and foam to put out Class A, B, and C liquid fires such as gasoline and diesel, perfectly adapting to multi-fire type scenarios such as petrochemical plants, oil depots, terminals, and hangars. For example, the dual-purpose fire monitor equipped on Jiangmen "Emergency Pollution Prevention 01" ship can not only handle ship fires but also respond to fuel leakage fires, realizing "one equipment for multiple purposes".
Higher Fire Extinguishing Efficiency: It supports the coordinated operation mode of "cooling while extinguishing fires". For example, in petrochemical storage tank fires, high-pressure water columns can first be used to cool the storage tank wall to prevent the tank from deforming and rupturing due to high temperature, and then switch to foam mode to put out open flames. The two-pronged approach greatly shortens the fire extinguishing time. The water tank foam fire truck exported to Pakistan by Dongguan Yongqiang Olinbao has realized fire extinguishing while driving and reversing fire extinguishing by virtue of the dual-purpose fire monitor, greatly improving the emergency response efficiency.
Higher Safety Factor: The remote control function allows firefighters to work in a safe area away from the fire scene, avoiding direct exposure to high temperature, toxic, and explosion risks. In places with explosion hazards, remote-controlled dual-purpose fire monitors are even more indispensable—locating the fire source through thermal imaging systems and starting spraying remotely can maximize the safety of personnel.
Lower Operation and Maintenance Costs: One system integrates two functions. Compared with installing both water monitors and foam monitors at the same time, it can reduce the initial investment in pipeline laying and equipment procurement. Subsequent maintenance only needs to target one system, reducing operation and maintenance costs. At the same time, the foam concentrate tank is made of corrosion-resistant materials, and the inner wall of the steel tank is also anti-corrosion treated to extend the service life of the equipment.
III. Practical Application: It Can Be Seen in These Scenarios
The "versatility" of the dual-purpose fire monitor allows it to play a key role in many high-risk scenarios. Let's look at these real application cases:
Petrochemical and Coal Chemical Parks: This is the core application scenario. Once equipment such as reactors and storage tanks in petrochemical plants catch fire, they are often accompanied by liquid leakage. The dual-purpose fire monitor can quickly switch modes to accurately handle different types of fires. Specifications require that the fire monitors in the storage tank area of Class A, B, and C liquids must cover the cross-sectional area of the largest storage tank, and the wide coverage characteristic of the dual-purpose fire monitor just meets this requirement.
Ports and Ships: Leakage and fire are prone to occur during fuel loading and unloading at terminals, and engine room fires may also occur during ship navigation. For example, the water tank foam fire truck exported to Karachi, Pakistan, has a dual-purpose fire monitor on the roof with a range of more than 70 meters, which can cover the terminal operation area and the ship deck, realizing shore-ship joint fire extinguishing; while the dual-purpose fire monitor of "Emergency Pollution Prevention 01" ship has a range of 55 meters, which can effectively handle water-borne ship fires and oil spill fires.
Large Industrial Plants and Warehouses: For high and large spaces with a height exceeding 8 meters (such as large logistics warehouses and hangars), traditional fire protection facilities are difficult to cover. The dual-purpose fire monitor can be installed at a high position through a fire monitor tower, using the long-range advantage to achieve full-area coverage, and at the same time respond to solid goods and possible oil fires.
IV. Purchase and Use: Pay Attention to These Key Parameters
If it is for enterprise procurement or project design, when choosing a dual-purpose fire monitor, these core parameters directly affect the use effect and must be focused on:
Range and Flow Rate: For outdoor scenarios, models with a range ≥50 meters should be selected; for large petrochemical parks, high-end models with a range of more than 100 meters are recommended. In terms of flow rate, the rated flow rate of outdoor foam monitors should not be less than 48L/s. The larger the flow rate, the higher the fire extinguishing and cooling efficiency. For example, the FireDos M7 model fire monitor has a maximum flow rate of 24000L/min, which is suitable for large-scale factories.
Control Method: For scenarios with explosion and toxic gases, remote electric control models must be selected, and they should have explosion-proof and heat-insulating functions; for low-risk scenarios, manual control models can be selected to reduce costs.
Foam Compatibility: Confirm the type of foam concentrate supported by the equipment (such as protein foam, fluoroprotein foam, etc.), which needs to match the foam concentrate stored on-site to avoid affecting the fire-extinguishing effect due to compatibility issues.
Start-up Time: Specifications require that the time from start-up to spraying of water monitors and foam monitors should not exceed 5 minutes. When purchasing, the response speed of the equipment should be confirmed—the faster the speed, the more the loss caused by fire spread can be reduced.
V. Summary: The Core Value of the All-Round Fire Warrior
The core value of the water/foam dual-purpose fire monitor lies in "solving multi-scenario problems with one system"—it not only makes up for the shortcoming that a single water monitor is ineffective for liquid fires but also solves the problem that a single foam monitor has low efficiency for solid fires. Furthermore, through designs such as remote control and coordinated operations, it improves the fire extinguishing safety and efficiency in high-risk scenarios. From petrochemical parks to ocean-going ships, from domestic projects to the "Belt and Road" export projects, this "all-round warrior" is guarding the lives and property safety of more people with technological innovation.
If your enterprise involves high-risk fire scenarios, when choosing a dual-purpose fire monitor, you may wish to combine the fire type, protection range, and control needs of your own scenario, and focus on parameters such as range, flow rate, and compatibility to make the equipment truly suitable for actual combat needs.
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we mainly have: water system accessories, stainless steel fire boxes and foam fire hydrant box accessories, valve accessories, intelligent above-ground hydrants and intelligent end-of-line test devices and automatic fire cannons, as well as accessories and fire equipment and valve product OEM processing.